Home / 8,783.22-12,118.88-5,245.75

Finding the Fourth Proportional to 8,783.22, 12,118.88 and 5,245.75

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Solution

The fourth proportional to 8,783.22, 12,118.88 and 5,245.75 is: 7,237.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.22 : 12,118.88 = 5,245.75 : x
  2. Step 2: Convert to fraction form
    8,783.22/12,118.88 = 5,245.75/x
  3. Step 3: Cross multiply
    8,783.22x = 12,118.88 × 5,245.75
  4. Step 4: Simplify right side
    8,783.22x = 63,572,614.76
  5. Step 5: Solve for x
    x = 63,572,614.76/8,783.22
  6. Step 6: Final answer
    x = 7,237.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.